Create explicit properties to fix dynamic properties errors.

Author: judgej

.gitignore

@@ -2,3 +2,4 @@
 composer.lock
 composer.phar
 phpunit.xml
+/.phpunit.result.cache

composer.json

@@ -35,12 +35,14 @@
     },
     "require": {
         "php": "^7.3|^8",
-        "omnipay/common": "~3.0"
+        "omnipay/common": "~3.0",
+        "symfony/http-client": "^6.0"
     },
     "require-dev": {
         "omnipay/tests": "^4.1",
         "squizlabs/php_codesniffer": "^3",
-        "phpspec/prophecy-phpunit": "^2.0"
+        "phpspec/prophecy-phpunit": "^2.0",
+        "http-interop/http-factory-guzzle": "^1.2"
     },
     "extra": {
         "branch-alias": {
@@ -51,5 +53,10 @@
         "test": "phpunit",
         "check-style": "phpcs -p --standard=PSR2 src/",
         "fix-style": "phpcbf -p --standard=PSR2 src/"
+    },
+    "config": {
+        "allow-plugins": {
+            "php-http/discovery": true
+        }
     }
 }

tests/Message/ServerNotifyRequestTest.php

@@ -11,6 +11,8 @@
 
 class ServerNotifyRequestTest extends TestCase
 {
+    protected $request;
+
     public function testServerNotifyResponseSuccess()
     {
         parent::setUp();

tests/ServerGatewayTest.php

@@ -8,6 +8,14 @@ class ServerGatewayTest extends GatewayTestCase
 {
     protected $error_3082_text = '3082 : The Description value is too long.';
 
+    protected $purchaseOptions;
+    protected $captureOptions;
+    protected $completePurchaseOptions;
+    protected $voidOptions;
+    protected $abortOptions;
+    protected $refundOptions;
+    protected $repeatOptions;
+
     public function setUp(): void
     {
         parent::setUp();